CAJ | 학술논문

对1961至今的上海雾霾日数变化特征及影响因素进行了调研和分析，特别是对2008年以来上海大气环境中粒径2.5μm 及以下颗粒物（PM 2.5）的年变化、月变化及日变化特征及影响因素做了相关分析，并从 PM 2.5的角度反映近年来的雾霾天气变化。经分析可知，上海市雾日数整体呈减少趋势，而霾日数呈增加趋势，且增幅明显。上海市 PM 2.5年平均质量浓度在2008-2014年期间呈降-升-降的趋势，仅2011年的年均值（34μg/m3）达到《环境空气质量标准》（GB3095-2012）中二级标准。另外，上海市 PM 2.5的月均值冬季高，夏季低，符合霾天气的冬多夏少，春秋季居中的规律，并且其浓度变化与气温和降水量等气象因素有较为明显的相关性。
대1961지금적상해무매일수변화특정급영향인소진행료조연화분석，특별시대2008년이래상해대기배경중립경2.5μm 급이하과립물（PM 2.5）적년변화、월변화급일변화특정급영향인소주료상관분석，병종 PM 2.5적각도반영근년래적무매천기변화。경분석가지，상해시무일수정체정감소추세，이매일수정증가추세，차증폭명현。상해시 PM 2.5년평균질량농도재2008-2014년기간정강-승-강적추세，부2011년적년균치（34μg/m3）체도《배경공기질량표준》（GB3095-2012）중이급표준。령외，상해시 PM 2.5적월균치동계고，하계저，부합매천기적동다하소，춘추계거중적규률，병차기농도변화여기온화강수량등기상인소유교위명현적상관성。
Through survey and analysis of Shanghai fog and haze daily variation characteristics and influencing factors since 1961, especially analyzing particle size 2.5 μm and below size 2.5 μm annual variation, monthly variation and daily variation characteristics and influencing factors in Shanghai since 2008. The article reflects haze weather changes from the perspective of PM2.5 in recent years. Based on analysis, Shanghai fog weather days shows a decreasing trend and haze weather days shows a obvious increasing trend. Shanghai PM2.5 annual average mass concentration demonstrates down-up-down trend from 2008 to 2014. Only in 2011 annual average mass concentration (34 μg/m3) reaches level II of <Environmental Air Quality Standard> (GB3095-2012). Besides Shanghai PM2.5 monthly average mass concentration is high in winter and is low in summer according to haze weather principle, which is low index in summer and high in winter,average in spring and autumn. Otherwise concentration changes has an apparent correlation to temperature, amount of precipitation and some meteorological factors.